Finding the Fourth Proportional to 17,908,117.20, 26,805,022.20 and 14,128,981.20
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Solution
The fourth proportional to 17,908,117.20, 26,805,022.20 and 14,128,981.20 is: 21,148,379.28
Step by Step Solution
- Step 1: Write the proportion equation
17,908,117.20 : 26,805,022.20 = 14,128,981.20 : x - Step 2: Convert to fraction form
17,908,117.20/26,805,022.20 = 14,128,981.20/x - Step 3: Cross multiply
17,908,117.20x = 26,805,022.20 × 14,128,981.20 - Step 4: Simplify right side
17,908,117.20x = 378,727,654,729,382.62 - Step 5: Solve for x
x = 378,727,654,729,382.62/17,908,117.20 - Step 6: Final answer
x = 21,148,379.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.